NAME

       schedulerinfo - Displays extended scheduler tasks information.

SYNOPSIS

       torrus schedulerinfo --tree=TREENAME [options...]

DESCRIPTION

       This utility displays the extended scheduler tasks information for tree TREENAME on
       standard output. This might be useful for scheduler planning and analysis.

OPTIONS

       --config
           Reports scheduler's configuration. The values are explained below.

           Total collector/monitor leaves: N
                   Total number of datasources being processed by collector or monitor daemon.

           Scheduled leaves by type
                   Torrus supports arbitrary number of collector types, and this report shows how
                   many datasources belong to every type. Currently the monitor leaves are not
                   divided into types.

           Least common period: N seconds
                   The report below shows how the tasks are distributed across the time line, and
                   the least common period shows the period of this time line.

           Tasks execution timeline
                   This report tells which task and how many datasources are involved in each
                   task startup event, and how these events are dispersed across the time.  The
                   column Interval shows the time interval from each task execution event to the
                   next event on the timeline.

       --runtime
           Reports scheduler's runtime statistics, such as running cycle times, late starts etc.
           The meaning of the output values is as follows. Values that have zero values are
           usually not printed.

           Task: Name, Period: N seconds, Offset: M seconds
                   Each scheduler task is characterized by its name (usually Collector or
                   Monitor), period, and timeoffset. Fore example, if period is set to 300
                   seconds, and offset is 14 seconds, then the task would be executed at
                   00:00:14, 00:05:14, 00:10:14, and so on for every hour in a day.

           N running cycles passed
                   How many times the task was executed since last reset. The counter is normally
                   reset after torrus_compilexml(8) successfully compiles the configuration.

           N late starts
                   How many times the task has started with a delay from its normal schedule.

           N too long runs
                   How many times the task execution time was longer than its period.

           N overrun periods
                   How many periods have been missed because of too long executions.

           N missed periods
                   How many periods were missed because of any reason (such as other tasks
                   delaying).

           Min, Max, Average, Exp Average
                   The time values are displayed in four columns: Minimum, Maximum and Average
                   values since last reset, and Exponential decay value, which may be interpreted
                   as the average for last several values. With defaults defined in
                   torrus-config.pl, 95% of the average is calculated from last 3 values.

           Running Time
                   How long the task executes each period.

           Late Start
                   How long the task start was delayed.

           Too Long
                   How much time the too long run took.

           RRD Queue
                   In a multithreaded environment, the RRD files are written in a background
                   thread. This value shows the length of the RRD update queue at the beginning
                   of each update cycle.

       --help
           Displays a help message.

SEE ALSO

       torrus(8), torrus_compilexml(8)

NOTES

       See more documentation at Torrus home page: http://torrus.org

AUTHOR

       Stanislav Sinyagin <ssinyagin@k-open.com>